/**
 * Copyright © 2016-2025 The Thingsboard Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.thingsboard.common.util;

import com.github.benmanes.caffeine.cache.Caffeine;
import com.github.benmanes.caffeine.cache.LoadingCache;

import java.util.concurrent.TimeUnit;
import java.util.function.Supplier;

public class CachedValue<V> {

    private final LoadingCache<Object, V> cache;

    public CachedValue(Supplier<V> supplier, long valueTtlMs) {
        this.cache = Caffeine.newBuilder()
                .expireAfterWrite(valueTtlMs, TimeUnit.MILLISECONDS)
                .build(__ -> supplier.get());
    }

    public V get() {
        return cache.get(this);
    }

}
